How to start other application from my activity on button click using Intent.

In this tutorial we would going to create an android application which would open any pre installed app in our android mobile phone. This type of functionality basically used where android developer needs to launch a specific android app from current activity. So here is the complete step by step tutorial for Launch Another Installed App From Your App in Android.

Also Read:

How to Launch Another Installed App From Your App in Android Programmatically.

Code for MainActivity.java file.

package com.android_examples.launchanotherapp_android_examplescom;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    Button buttonChrome, buttonYouTube;
    String GoogleChromePackageName = "com.android.chrome";
    String YouTubePackageName = "com.google.android.youtube";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        buttonChrome = (Button)findViewById(R.id.button);
        buttonYouTube = (Button)findViewById(R.id.button2);

        buttonChrome.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                //  Passing Google Chrome Package Name Here.
                Intent intent = getPackageManager().getLaunchIntentForPackage(GoogleChromePackageName);
                startActivity(intent);

            }
        });

        buttonYouTube.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                //  Passing YouTube Package Name Here.
                Intent intent = getPackageManager().getLaunchIntentForPackage(YouTubePackageName);
                startActivity(intent);

            }
        });
    }
}

Code for activity_main.xml layout file.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.android_examples.launchanotherapp_android_examplescom.MainActivity">

    <Button
        android:text="Lauch YouTube App"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button"
        android:layout_centerHorizontal="true"
        android:id="@+id/button2" />

    <Button
        android:text="Launch Google Chrome App"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:id="@+id/button"
        android:layout_marginTop="199dp"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

</RelativeLayout>

Screenshots: